NASA shared an amazing photo of the galaxy called M77 on Instagram and briefly explained how it was “shaped”. For a long time, the shapes of many galaxies, including our own Milky Way, have plagued many scientists. The Milky Way is spiral-shaped, and its arms are full of stars. However, have you ever wondered how it was formed? Well, this is a problem that has plagued scientists for a long time. In its new post, the space agency explains how the magnetic field plays a huge role in shaping various galaxies.
This article is based on the research of NASA’s Stratospheric Infrared Astronomical Observatory or SOFIA Telescope. In the title, NASA stated that “spiral galaxies like the Milky Way are shaped by magnetic fields” and “invisible to the human eye”.
But by combining images from the Space Agency’s Hubble Space Telescope, the Nuclear Spectroscopy Array, and the Sloan Digital Sky Survey, these magnetic fields have become clearer.
NASA described the article on Instagram, “In this image, scientists measured the magnetic field on the spiral arms of a galaxy called M77. These fields appear to closely follow the streamlines of the spiral arms. The magnetic field follows the spiral arms of the galaxy. The entire length of the huge spiral arms are arranged-spanning 24,000 light years-which means that the gravity that creates the shape of the galaxy is also compressing its magnetic field.”
This is the post:
In a report published on its website in December 2020, NASA stated that Sophia “studied the galaxy using far-infrared light (89 microns) to reveal various aspects of its magnetic field, compared to the previous use of visible light and radio. Telescope observations cannot detect these aspects.” The report also pointed out that the shape of these circling arms comes from the so-called “density wave theory.” This theory suggests that the dust, gas, and stars in the spiral arms are always moving, just like luggage on a conveyor belt.
According to another report on the NASA website in December 2019, M77 is 47 million light-years away from Earth. It is located in the constellation Cetus.
There is a huge black hole in the center of M77, twice the size of the black hole in the Milky Way.